Attach last error message when using the Report Issue link.

omega-target-chromium-extension/background.coffee

@@ -10,6 +10,7 @@ Log.log = (args...) ->
 Log.error = (args...) ->
   console.error(args...)
   content = args.map(Log.str.bind(Log)).join(' ')
+  localStorage['logLastError'] = content
   localStorage['log'] += 'ERROR: ' + content + '\n'
 
 unhandledPromises = []

omega-target-chromium-extension/omega_target_web_basics.coffee

@@ -1,6 +1,8 @@
 window.OmegaTargetWebBasics =
   getLog: (callback) ->
     callback(localStorage['log'] || '')
+  getError: (callback) ->
+    callback(localStorage['logLastError'] || '')
   getEnv: (callback) ->
     extensionVersion = chrome.runtime.getManifest().version
     callback({

omega-target-chromium-extension/overlay/js/background_preload.js

@@ -1,2 +1,3 @@
 window.UglifyJS_NoUnsafeEval = true
 localStorage['log'] = ''
+localStorage['logLastError'] = ''

omega-web/src/coffee/popup_basics.coffee

@@ -15,4 +15,10 @@ window.OmegaTargetWebBasics.getEnv (env) ->
     SwitchyOmega #{env.projectVersion}
     #{env.userAgent}
   """
-  document.querySelector('.report-issue').href = url + encodeURIComponent(body)
+  link = document.querySelector('.report-issue')
+  link.href = url + encodeURIComponent(body)
+  window.OmegaTargetWebBasics.getError (err) ->
+    return unless err
+    body += "\n```\n#{err}\n```"
+    final_url = url + encodeURIComponent(body)
+    link.href = final_url.substr(0, 2000) # Limit URL up to 2000 chars.